If we had taken such effective measures earlier, the river ___ so seriously now.
| A．is not polluted |
| B．would not be polluted |
| C．had not been polluted |
| D．would not have been polluted |
you meet with new words when reading English articles , you can guess the meaning first .
| A． Every time | B．First time | C．For the first time | D．At the time |
As it turned out to be a problem of no importance , we so much time looking into it .
| A．needn’t spend | B．didn’t have to spend |
| C．needn’t have spent | D．oughtn’t to spend |
The specialist at the meeting will give us a lecture next week .
| A．referred | B．referred to | C．referring | D．referring to |
common with many boys ,he likes playing computer games .
| A．At | B．with | C．In | D．To |
French , I have to study a second foreign language .
| A．In addition that | B．In addition |
| C．In addition to | D．Beside |